Philips, J. (2018). PMP Project Management Professional: Study Guide (fifth.). Mc Graw Hill.
Chicago-čujuhus (17. p.)Philips, John. PMP Project Management Professional: Study Guide. fifth. New York: Mc Graw Hill, 2018.
MLA-čujuhus (9. p.)Philips, John. PMP Project Management Professional: Study Guide. fifth. Mc Graw Hill, 2018.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.